global class OPDLendSortCopyToSortBeforeBatch implements Database.Batchable<sObject> {
    // SWAG-BYD6DD XHL 2021/02/20 
    public String query;
    List<String> oPDPlanIdList = null;

    global OPDLendSortCopyToSortBeforeBatch() {
        this.query = query;
    }

    global OPDLendSortCopyToSortBeforeBatch(List<String> oPDPlanIdList) {
        this.oPDPlanIdList = oPDPlanIdList;
    }

    global Database.QueryLocator start(Database.BatchableContext bc) {

        if (oPDPlanIdList <> null) {
            return Database.getQueryLocator([SELECT Id, Name, OPDPlan_ImplementDate__c,OPDLendSort__c,OPDLendSortDraft__c,OPDLendSortBefore__c,Status__c FROM OPDPlan__c WHERE (OPDLendSort__c != null OR OPDLendSortDraft__c != null OR OPDLendSortBefore__c != null) AND Status__c = '计划中' AND Id In :oPDPlanIdList]);
        } else {
            return Database.getQueryLocator([SELECT Id, Name, OPDPlan_ImplementDate__c,OPDLendSort__c,OPDLendSortDraft__c,OPDLendSortBefore__c,Status__c FROM OPDPlan__c WHERE Status__c = '计划中' AND (OPDLendSort__c != null OR OPDLendSortDraft__c != null OR OPDLendSortBefore__c != null)]);
        }
    }

    global void execute(Database.BatchableContext BC, List<OPDPlan__c> oPDPlanList) {
        for(OPDPlan__c opdp : oPDPlanList) {
            opdp.OPDLendSortBefore__c = null;//备品出借优先度（上月）置空
            opdp.OPDLendSortBefore__c = opdp.OPDLendSort__c;//备品出借优先度 赋值给 备品出借优先度（上月）
            opdp.OPDLendSort__c = null;//备品出借优先度 置空
            opdp.OPDLendSortDraft__c = null;//备品出借优先度草案中 置空
            opdp.SortDate__c = null; //排序日期 置空

        }

        if (oPDPlanList != null && oPDPlanList.size() > 0) {
            update oPDPlanList;
        }
    }

    global void finish(Database.BatchableContext BC) {

    }
}